Home / 102,113.73-140,914.49-56,791.58

Finding the Fourth Proportional to 102,113.73, 140,914.49 and 56,791.58

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Solution

The fourth proportional to 102,113.73, 140,914.49 and 56,791.58 is: 78,371.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,113.73 : 140,914.49 = 56,791.58 : x
  2. Step 2: Convert to fraction form
    102,113.73/140,914.49 = 56,791.58/x
  3. Step 3: Cross multiply
    102,113.73x = 140,914.49 × 56,791.58
  4. Step 4: Simplify right side
    102,113.73x = 8,002,755,543.46
  5. Step 5: Solve for x
    x = 8,002,755,543.46/102,113.73
  6. Step 6: Final answer
    x = 78,371.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.